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faust18 [17]
3 years ago
5

1... 2(9n-1)+7(n+6)=-60 2... 11(4-6y)+5(13y+1)=9

Mathematics
2 answers:
Jobisdone [24]3 years ago
5 0

<em>Answer:</em>

<em>Hello! I hope I’m correct!! :)</em>

<em>1. n = -4</em>

<em>2. y = 40</em>

<em>Step-by-step explanation:</em>

<em>Steps for the first equation.</em>

<em />

<em>Step #1. {we are solving for “2(9n-1)+7(n+6)=-60”}</em>

<em />18n-2+7n+42=-60<em />

<em>Step #2. Simplify.</em>

<em />25n+40=-60<em />

<em>Step #3. Subtract 40 {from both sides}</em>

<em />25n=-60-40<em />

<em>Step #4. Simplify.</em>

<em />25n=-100<em />

<em>Step #5. Divide both of the sides by 25. Which will be:</em>

<em />-\frac{100}{25}<em />

<em>Step #6. Now divide (simplify) 100 & 25 which will give you the answer.</em>

<em />n=-4<em />

<h3><em>So for the first equation the answer is n = -4</em></h3>

<em>______________________________________</em>

<em>Now let’s solve the second equation.</em>

<em />

<em>Step #1. Expand</em>

<em />-y+49=9<em />

<em>Step #2. Subtract 49 from both sides.</em>

<em />-y+49-49=9-49<em />

<em>Step #3. Simplify.</em>

<em />-y=-40<em />

<em>Step #4. Divide both sides by -1.</em>

<em />-40/-1<em />

<em>Step #5. Simplify.</em>

<em />y=40<em />

<h3><em>And your answer to the second equation would be y = 40</em></h3>

<em />

<em>Sorry if this is incorrect but I hope this helps! If you have any questions about this, feel free to ask! Have a wonderful day! (≧∇≦)</em>

<em>~By, BrainlyAnime~ <3</em>

<em />

serious [3.7K]3 years ago
4 0

Step-by-step explanation:

2(9n-1)+7(n+6)=-60

18n - 9 + 7n + 42 = -60

25n + 33 = -60

25n = -93

n = -3.72

11(4-6y)+5(13y+1)=9

44 - 66y + 65y + 5 = 9

-y + 49 = 9

-y = -40

y = 40

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Answer:

actual rate of interest is 2.08 %

Step-by-step explanation:

Given data

borrowed = $2100

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to find out

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solution

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